Second-phase validation study of an alternative developmental toxicity test using mouse embryonic stem cell-derived embryoid bodies.
J Physiol Pharmacol
; 71(2)2020 Apr.
Article
in En
| MEDLINE
| ID: mdl-32633240
ABSTRACT
The embryoid body test (EBT) is a developmental toxicity test method that measures the size of embryoid bodies (EBs) and the viability of mouse embryonic stem cells (mESCs) and fibroblasts (3T3 cells). The previous pre-validation study confirmed the high accuracy (above 80%) of EBT using 26 coded test chemicals. This second-phase validation study assessed the inter-laboratory reproducibility (5 chemicals in common) and predictive capacity (10 chemicals in each laboratory) test using the coded test chemicals at three laboratories. For the prediction model, the accuracy is increased when more data is accumulated. Therefore, we updated the prediction model and analyzed the results of the second year with the newly created-prediction model. Statistical analysis of the inter-laboratory reproducibility test results indicated that accuracy, sensitivity, and specificity were 87%, 78%, and 100%, respectively. The results of the statistical analysis of the predictive capacity test showed an accuracy of 80%, sensitivity of 78%, and specificity of 81%. In conclusion, the EBT can accurately classify various embryotoxicants within a short period and with relatively little effort. Therefore, EBT can be used as a good way to test developmental toxicity.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Toxicity Tests
/
Embryoid Bodies
/
Mouse Embryonic Stem Cells
/
Animal Testing Alternatives
Type of study:
Prognostic_studies
Limits:
Animals
Language:
En
Journal:
J Physiol Pharmacol
Journal subject:
FARMACOLOGIA
/
FISIOLOGIA
Year:
2020
Document type:
Article